Urchin-Inspired TiO2@MIL-101 Double-Shell Hollow Particles: Adsorption and Highly Efficient Photocatalytic Degradation of Hydrogen Sulfide

作者：Sheng, Haibo; Chen, Dongyun^*; Li, Najun; Xu, Qingfeng; Li, Hua; He, Jinghui; Lu, Jianmei^*

来源：Chemistry of Materials, 2017, 29(13): 5612-5616.

DOI：10.1021/acs.chemmater.7b01243

• VISIBLE-LIGHT
• UV-A
• H2S
• TIO2
• OXIDATION
• PHOTODEGRADATION
• DESTRUCTION
• STORAGE
• SPHERES
• CR

Titanium dioxide (TiO2) is a commonly used photocatalysis for the oxidation of hydrogen sulfide (H2S). However, the low surface area and adsorption ability of TiO2 limit the photocatalytic decomposition rate. Here, a tunable metal organic framework (MOF) coating is applied to hollow TiO2 nanoparticles using a versatile step-by-step self-assembly strategy. The hollow structure provides a high surface area, and the selected MIL-101 (Cr) MOF has a high and regenerable adsorption ability for H2S. The TiO2@MIL-101 double-shell hollow particles enable a catalytic cycle involving simultaneous adsorption and degradation of H2S, with considerably enhanced photocatalytic reaction rate. This work provides a method for improving photocatalytic performance through the design of hollow MOF-based materials that rationally combine the power of MOF and TiO2.

• 出版日期2017-7-11
• 单位苏州大学